Two students design an experiment to prove that mass is conserved during a chemical reaction. They attach a balloon to a flask containing 100.00 g of water and 1 antacid tablet. The antacid tablet is
dropped into the water where it begins to react, producing carbon dioxide gas. The antacid tablet weighs 3.24 9. The total mass before reaction is 103 24 g Antacid is a mixture of citric acid, sodium
bicarbonate, and aspirin and reacts with water producing a sodium citrate solution, carbon dioxide, and aspirin
Answers: 2
Physics, 21.06.2019 14:50
Ingrid wrote the hypothesis below. if the temperature of a liquid increases, the density of the liquid decreases because the particles move farther apart. what are the variables in her hypothesis?
Answers: 3
Physics, 21.06.2019 18:00
Awind turbine is initially spinning at a constant angular speed. as the wind's strength gradually increases, the turbine experiences a constant angular acceleration 0.173 rad/s2. after making 2870 revolutions, its angular speed is 132 rad/s. (a) what is the initial angular velocity of the turbine? (b) how much time elapses while the turbine is speeding up?
Answers: 1
Physics, 22.06.2019 06:30
At very high pressures, gases become and will eventually a) more dense; become hotter b) more dense; change to a liquid or solid c) less dense; combust d) less dense; turn into a liquid
Answers: 1
Two students design an experiment to prove that mass is conserved during a chemical reaction. They a...
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